Some Lampreys are anadromous from their lake and they migrate up rivers to spawn.
Explanation:
If the adult fish live in the sea and migrate into fresh water to spawn is known as anadromous and if the adult fish live in fresh water and migrate into salt water to spawn is known as catadromous.
An anadromous fish like salmon, smelt,shad spends most of their life in the sea and returns to fresh water to spawn. A catadromous fish like eels lives in fresh water and enters salt water to spawn.
Sea lamprey brings nutrients into fresh water and provide a source of food for various birds, fish, mammals and people. The newly transformed lamprey can live only for few months in fresh water .
The females deposit a large number of eggs in nest made by males in the streams with strong current. Spawning is done by death of the adults
Answer:
Emasculation is the removal of both the penis and the testicles, the external male sex organs. It differs from castration, which is the removal of the testicles only, although the terms are sometimes used interchangeably.
Explanation:
:) :)
C) hotspot because it is pushing up causing the lava to go up
You may have feelings of inadequacy when you can't have—or give your children—the kind of life that others seem to have. All of these situations and challenges can lead to stress, which in turn lead to the development of Self Defeating Behaviors (SBD).
<h3>What is beneficial traits?</h3>
- Beneficial traits are extremely varied and may contain anything from protective coloration to the ability to operate a new food source, to a change in size or constitution that might be useful in a certain environment.
- Over time, these favorable traits become more common in the residents. Through this process of natural preference, favorable characteristics are transmitted through generations. Natural preference can lead to speciation, where one species gives rise to a new and distinctly different species.
- The artificial section is the identification by humans of seductive traits in factories and animals, and the steps taken to enhance and memorialize those traits in future years.
To learn more about beneficial traits, refer to:
brainly.com/question/26681159
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Answer:
A) They contain many carbon atoms.
Explanation:
Proteins are considered organic molecules because they are made up of carbon atoms. Proteins give your body energy and allows your body to run the way it does. Proteins also aren't considered organic molecules because they are small, because they are not used by living things, or because they contain nitrogen.
Hope this helps.
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